Chemistry Lab Safety Video - Choose-Your-Own-Adventure Style

Are those shoes you're wearing lab safe? What do you do when you splash acid in your eye? Georgia Tech's School of Chemistry and Biochemistry has developed this video, in the choose-your-own-adventure style to help you learn how to get through the lab in one piece. Click your answer (sorry, doesn't work on mobiles) when the time comes and see if you're right.

New Prof Amit Reddi is a Metal Maniac

Amit Reddi is a new assistant professor in the School of Chemistry and Biochemistry with a specialty in bio-inorganic chemistry. We sat down with Reddi to find out more about him and his work.

Grad Student Troy Alexander Makes Discovery in Amazon, Stumps Scientists

Georgia Tech Chemistry and Biochemistry grad student Troy Alexander found a hitherto unexplained web-tower-thing growing in the Amazon. Scientists are stumped as to what it is. See the story in Wired.

Grad Students and the Quest for the Origins of Life

Want to learn how life began? You can do that. Chemistry and Biochemistry graduate student Eric Parker tells how.

Seminars & Events

Special Seminar - Monday, April 21, 2014 - 4:00pm - MoSE G011
Asst. Prof. Steven E. Wheeler - Texas A&M University
Physical Division Seminar - Tuesday, April 22, 2014 - 11:00am - MoSE 3201A
Prof. Stephen Lippard - Massachusetts Institute of Technology
Colloquium - Tuesday, April 22, 2014 - 4:00pm - MoSE G011
Prof. Eric Betzig - Janelia Farm Research Campus, Howard Hughes Medical Institute
Peter B. Sherry Memorial Lecture - Thursday, April 24, 2014 - 4:00pm - MoSE G011

Featured Research

Article Title
Research Authors
Matthew C. Hagy., Rigoberto Hernandez.
Citation
The Journal of Chemical Physics (2014), Vol. 140, 034701
Miscellaneous Details
National Science Foundation ; Center for Computational Molecular Science and Technology

To what extent can you control the structure and motion of an assembly of colloidal particles through a coating of its surface? This is precisely the problem that recent graduate, Dr. Matthew Hagy, and Prof. Hernandez have been studying over the past couple of years. Their colloidal particles are a couple hundred nanometers in diameter. The coating corresponds to the charges encoded on the surface of the colloids. Opposite charges attract.

In the work that was just published in the Journal of Chemical Physics, Hagy and Hernandez now consider the case in which the spheres are coated in stripes of alternating charge. This generalizes the surface pattern of the Janus particles to three, four, five, six, and more stripes. The funny thing is that very little happens to the packing of the particles because that property is so strongly dominated by the shape of the particles. But their motion, and the timescales in which they relax from a given deformation is highly sensitive to the number of stripes and perhaps also to how they are striped. In a sense, this says that if you want to maintain their behavior, you can fatten them up a little but you can't change their stripes.

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